Recycle Analysis of Polymers
This shows the recycle fractionation of lauryl stearyl thiodipropionate using GPC K-2001 (a column for organic SEC (GPC)).
Sample : Lauryl stearyl thodipropionate
Dilauryl thiodipropionate
Distearyl stearyl thiodipropionate
Lauryl stearyl thiodipropionate
Columns : Shodex GPC K-LG (8.0mmID*50mm) + K-2001 (20.0mmID*300mm) Eluent : CHCl3 Flow rate : 3.0mL/min Detector : Shodex RI Column temp. : 50deg-C
The color of some impurity substance in a resin changed to yellow. And, the substance was fractionated by recycle analysis using GPC H-2001 and the chemical structure was determined.
Sample : Butylated hydroxytoluene, BTH
Columns : Shodex GPC H-2001 (20.0mmID*500mm) x 2 Eluent : CHCl3 Flow rate : 3.0mL/min Detector : UV(254nm) Column temp. : Room temp.
S. Nakamura et al, J. Chromatgr. , 83 (1973) 279